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Philco 90 Capacitor 28
#1

I am working on a Philco 90. Capacitor 28 has three capacitors, .5 ufd, .25 ufd, and .25 ufd. The schematic does not give the values and I would like to know which one of the capacitor symbols is the .5 ufd capacitor on the schematic?

Thank you,
nv3g
Oscar
#2

There are several versions of the 90. Ron has annotated these schematics, does this help?

Early Version (2 45tubes)

Middle version (1 47tube)

Late version (2 47tubes)
#3

Yes, thank you!
#4

Icon_thumbup Icon_thumbup
#5

Thanks!!!!!!  I am restoring an early 90. I rebuilt the 28 cap and needed to know which went where.

Bob




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